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Q. 6 Two separators (2-phase and 3-phase) are being considered for purchase for

ID: 1159727 • Letter: Q

Question



Q. 6
Two separators (2-phase and 3-phase) are being considered for purchase for upgrading the oil production facilities. The following table shows the cost associated of two separators.

                                         Separator A         Separator B
                                             ( 2-phase)            ( 3-phase)
Initial cost and
insulation                          15,000 $             25,000 $

Annual uniform end
of year maintenance            2,000 $              3,000 $

Overhaul end of year 3                                2,500 $

Salvage value                       1,500

Service life time                 6 years                4 Years


For an annual interest rate of 7 % determined which separator is better for purchasing? Explain your selection

Not. Show all calculation and draw Cash Flow Diagram



Explanation / Answer

ANSWER:

diagram couldn't be uploaded due to technical issues and hence i am making the cash flow of both the alternatives.

project a:

-500

project b:

We need to find the net present worth of the 2 alternatives.

i = 7% and n = 6 years for project a.

1) pw of project a = first cost + operating cost(p/a,i,n) + salvage value(p/f,i,n)

pw of project a = -15,000 - 2,000(p/a,7%,6) + 1,500(p/f,7%,6)

pw of project a = -15,000 - 2,000 * 4.767 + 1,500 * 0.6663

pw of project a = -15,000 - 9,534 + 999.45

pw of project a = -25,534.6

2) i = 7% and n = 4 years for project b.

pw of project b = first cost + operating cost(p/a,i,n) + salvage value(p/f,i,n)

pw of project b = -25,000 - 3,000(p/a,7%,4) - 2,500(p/f,7%,3)

pw of project b = -25,000 - 3,000 * 3.387 - 2,500 * 0.8163

pw of project b = -25,000 - 10,161 - 2,040.75

pw of project b = -37,201.75

since project a has a higher present worth , therefore we will select project a.

year 0 1 2 3 4 5 6 initial cost -15,000 maintenance cost -2,000 -2,000 -2,000 -2,000 -2,000 -2,000 salvage value 1,500 cash flows -15,000 -2,000 -2,000 -2,000 -2,000 -2,000

-500